diff --git a/Marco.Pms.Services/Controllers/AuthController.cs b/Marco.Pms.Services/Controllers/AuthController.cs
index 8f96f56..44390d8 100644
--- a/Marco.Pms.Services/Controllers/AuthController.cs
+++ b/Marco.Pms.Services/Controllers/AuthController.cs
@@ -390,8 +390,8 @@ namespace MarcoBMS.Services.Controllers
                     await _refreshTokenService.BlacklistJwtTokenAsync(jwtToken);
                     _logger.LogInfo("JWT access token blacklisted successfully");
                 }
-                string? origin = HttpContext.Request.Headers["Origin"].FirstOrDefault();
-                if (string.IsNullOrWhiteSpace(origin))
+                string userAgent = HttpContext.Request.Headers["User-Agent"].ToString();
+                if (userAgent.Contains("Dart"))
                 {
                     var fcmTokenMapping = await _context.FCMTokenMappings.FirstOrDefaultAsync(ft => ft.EmployeeId == loggedInEmployee.Id && ft.TenantId == tenentId);
                     if (fcmTokenMapping != null)